Discussions By Condition: Skin conditions

Rough, itchy patch of skin on finger

On my left hand ring finger the whole section between the main part of my hand and the first joint is covered in this super thick, kind of gold colored tough skin. It's been there for months now (or at least that's when I first noticed it) I thought it was just a callous but it's only on that finger and I'm right handed so there's no real reason to it to be just in that one spot.

Recently these like... pinprick holes have started to show in and around it and lines of what look like blood are starting to thread through underneath the patch of skin. It's also started to get real itchy (though that happened after the blood underneath showed up) The holes keep showing up farther towards the end of my finger and kinda look like mosquito bites but they never go away and it really kinda seems like it's spreading.